Situation was that NetBSD-current compiled for VS2000 doesn't work.

Bertram Barth writes:
[...]
> If the machine doesn't display any "HLT PC=xxxx" message but just
> sits there and seems to dead, this is almost sure due to an endless
> loop while counting memory...
> 
> badaddr() which traps invalid addresses on other VAXen doesn't (or
[...]

Havin' a look into the sources sometimes helps in getting a clue ;-/

One of ragge's last messages about DZ made me rethink what I wrote.
After having a look into current sources I found that ragge already
explained this behaviour completely. (the missing support for VS2000's
output routines are the reason why there's no output on your terminal;
it's an endless loop also but there's no relation to memory counting 
or pmap.c).

Sorry for the confusion.
Ciao,
	bertram